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      <img src="../logo.svg" class="logo" alt=""><h1>Download latest versions of arrow datasets if user doesn't have them already</h1>
      <small class="dont-index">Source: <a href="https://github.com/USEPA/EJAM/blob/HEAD/R/download_latest_arrow_data.R" class="external-link"><code>R/download_latest_arrow_data.R</code></a></small>
      <div class="d-none name"><code>download_latest_arrow_data.Rd</code></div>
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    <p>Used when EJAM package is attached</p>
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    <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">download_latest_arrow_data</span><span class="op">(</span></span>
<span>  varnames <span class="op">=</span> <span class="va">.arrow_ds_names</span>,</span>
<span>  repository <span class="op">=</span> <span class="st">"USEPA/ejamdata"</span>,</span>
<span>  envir <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/environment.html" class="external-link">globalenv</a></span><span class="op">(</span><span class="op">)</span></span>
<span><span class="op">)</span></span></code></pre></div>
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    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


<dl><dt id="arg-varnames">varnames<a class="anchor" aria-label="anchor" href="#arg-varnames"></a></dt>
<dd><p>use defaults, or vector of names like "bgej" or use "all" to get all available</p></dd>


<dt id="arg-repository">repository<a class="anchor" aria-label="anchor" href="#arg-repository"></a></dt>
<dd><p>repository name such as "USEPA/ejamdata"</p></dd>


<dt id="arg-envir">envir<a class="anchor" aria-label="anchor" href="#arg-envir"></a></dt>
<dd><p>if needed to specify environment other than default, e.g., globalenv() or parent.frame()</p></dd>

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    <div class="section level2">
    <h2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
    <p>Checks to see what is the latest version of datasets available according to a repository's latest release tag.
Compares that to what version was last saved locally (as stored in the installed package's
ejamdata_version.txt file).</p>
<p>Relies on <code><a href="https://docs.ropensci.org/piggyback/reference/pb_releases.html" class="external-link">piggyback::pb_releases()</a></code> to download data files from a specific release (version) of the package.</p>
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